clear RIA Cardiac Mort Mort_Value_Mat One One_I Emission_Plus Pop_over_25 D_Ton
clear Total_Pop Senior_Pop CB_Pop I r n i ans PMD BMD SO2 NOx PM_10_Primary
clear Deaths Bronchitis BMD B_10_MD ER_Asthma
clear Visual_Range_Base Pop_over_30 SO2 NOx
clear Acute_Mort Years_Left  x NH3 A  PM_10 V Z
clear All_Mort Harvest NH4e NH4   c d y z B_VOC A_VOC
clear Twenty Thirty Ratio_1 Ratio_2 Ratio_3 Twenty_Seven Nitrate_Temp
clear Forty Fifty PM_10_C PM_10_B Delta VSL Damages
clear NOx_L_I SO2_L_I NH3_L_I
clear NOx_A_I NH3_A_I SO2_A_I
clear SO2_M_I NH3_M_I NOx_M_I
clear PM_25_C SO4 NO3 PM_25_Primary
clear V_A V_L V_M V_T V_T2 Infant Pop_Infant
clear Incidence* Pop* Damage_H* Damage_A* Damage_E* Damage_L* Damage_N* 
clear Damage_U* Damage_W*